Examen Practice Final

8/3/2019 Examen Practice Final

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Take Assessment - ENetwork Practice Final Exam - CCNA Exploration: Network Fundamentals (Version4.0)

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1 The Layer 4 header contains which type of information to aid in the delivery of data?

service port number

host logical address

device physical address

virtual connection identifier

2 Which fiber connector supports full-duplex Ethernet?

3 Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?

application layer

presentation layer

session layer

transport layer

4

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Refer to the exhibit. A network technician has made several changes to R1 since the configuration has last been saved. The modified connot produce the desired changes. The technician wants to store a backup copy of the saved configuration on a TFTP server before reloaaction will cause the unmodified data to be saved on the TFTP server?

5

Refer to the exhibit. Which option shows the correct topology given the configuration of Router1?





6

Refer to the exhibit. Which Layer 2 protocol could be used inside nework A and network C?

IP

TCP

UDP

Ethernet





7

Refer to the exhibit. Which set of devices contains only intermediary devices?

A, B, D, G

A, B, E, F

C, D, G, I

G, H, I, J

8 Which statement is true about the ICMP protocol?

It is an application layer protocol.

It is designed to make IP a reliable protocol.

It is often filtered out of networks for security purposes.

If a host does not respond to an ICMP echo request, the host is not functioning.

9 Which three statements are true about network layer addressing? (Choose three.)

It uniquely identifies each host.

It assists in forwarding packets across internetworks.

It uses a logical 32-bit IPv4 address.

It is not a configurable address.

It is a physical address.

It identifies the host from the first part of the address.

10











Refer to the exhibit. Host A sends a frame to host C with a destination MAC address CC. The MAC address for host C is not in the MAC tSW1. How will SW1 handle the frame?

Switch SW1 will drop the frame.

Switch SW1 will forward the frame to host C.

Switch SW1 will flood the frame out all ports.

Switch SW1 will flood the frame out all ports except port Fa0/1.

11 Which memory contents will change as a result of using the Router# erase startup-config command on a router?

RAM

ROM

flash

NVRAM

12

Refer to the exhibit. Host B was powered off. What change will occur in the MAC table of the switch?

The table will remain unaffected.

The switch will remove the MAC address at Fa0/19.

The switch will retain the MAC address until host B is powered on again.

The switch will rebuild the MAC table by assigning the FFFF.FFFF.FFFF address to port Fa0/19.

13 What information is contained in the header of Layer 3 to help data delivery?

port number

device physical address









destination host logical address

virtual connection identifier

14 What are three characteristics of CSMA/CD? (Choose three.)

It monitors the media for presence of a data signal.

After detecting a collision, hosts can resume transmission after a random timer has expired.

A jam signal is used to ensure that all hosts are aware that a collision has occurred.

Devices can be configured with a higher transmission priority.

Data is transmitted only when the data signal is present.

It uses a token system to avoid collisions.

15

Refer to the exhibit. At which OSI layer is serial interface 0/0/1 experiencing problems?

Layer 1

Layer 2

Layer 3

Layer 4

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Refer to the exhibit. What is required on host A for a network technician to create the ini tial configuration on Router1?

an FTP client

a Telnet client

a terminal emulation program

a web browser

17

Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayed in the exhibit. What is ththe primary domain name server used by the host?

10.10.10.32





192.168.1.5

192.168.1.99

192.168.2.100

1

8

Refer to the exhibit. Which logical topology describes the exhibited network?

star

ring

point-to-point

multi-access

19

Which three IPv4 addresses represent a broadcast for a subnet? (Choose three.)

172.16.4.63 /26

172.16.4.129 /26

172.16.4.191 /26

172.16.4.51 /27

172.16.4.95 /27

172.16.4.221 /27

20 By using the ipconfig command, a network administrator determines that a workstation has the address 192.168.3.38 with 29 bits set in tmask. To what network does the workstation belong?

192.168.3.8

192.168.3.16

192.168.3.24

192.168.3.32

21















Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network device or interface does the

192.168.1.254 belong?PC

switch

router interface fa0/0

router interface fa0/1

22

Refer to the exhibit. Host X is unable to communicate with host Y. Which command can be run at host X to determine which intermediary

responsible for this failure?

telnet 192.168.1.1

ping 192.168.1.1

ftp 192.168.1.1

tracert 192.168.1.1

23 Which device should be used for routing a packet to a remote network?

access switch

DHCP server

hub

router







24 Which OSI layer uses the header information to reassemble the data segments into streams?

application layer

network layer

presentation layer

session layer

transport layer

25 A network administrator wants to restrict access to the router privileged EXEC mode. Which password should the administrator use?

enable

aux

console

VTY

2

6

Refer to the exhibit. A PC is connected to a network. Which action will verify that the PC can communicate with its default gateway?

Use the ping 127.0.0.1 command.

Use the ipconfig command.

Use the ipconfig/all command.

Use the ping 10.0.0.254 command.

27

What is the Cisco IOS?

system software for Cisco devices

Read Only Memory in Cisco devices

non-volatile storage for device configurations

an initial operating system that is used for boot functions

28



















Refer to the exhibit. The headers added at each layer are shown. Which layer adds the destination and source process numbers to ensure tapplication?

physical layer

data link layer

network layer

transport layer

29

Refer to the exhibit. A user wants to access the Internet from the PC. A part of the running configuration of the router is shown. Which defauladdress should be configured at the PC to enable this access?

10.1.192.1

10.1.192.2

10.1.192.54

192.31.7.1

30

Refer to the exhibit. A network administrator is troubleshooting a link that is down between Router1 and Router2. To correct the problem,need to be switched on one of the Ethernet cable ends?

pair 1 and pair 2

pair 1 and pair 3

pair 2 and pair 3

pair 2 and pair 4









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31

Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)

Four collision domains are present.

One logical network is represented.

Two broadcast domains are present.

Three networks are needed.

Three logical address ranges are required.

32 Which physical connector type is used for a serial V.35 connection to the CSU/DSU?

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33 A network technician is tasked with setting up a network for six users, but the users should be able to use their accounts to log on from acomputers. What type of network should be used?

workgroup

P2P applications

peer-to-peer network

client-server network

34 Which statement is true about router hostnames?

A hostname should be unique on each router.

A router hostname cannot contain capital letters.

A router hostname is configured in privileged executive mode.

A router hostname must be created before any other configurations can be added to the device.

35









Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable thisA?

Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130

Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2

Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1

Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130

36

Refer to the exhibit. An administrator on PC1 wants to view some HTML code from a web page housed on the web server. Which client aallow this request to be started?





37 What is the result of using the clock rate 56000 command at the serial interface of the router?

The interface is configured as a DCE device.

The interface timers are cleared.

The FastEthernet interface is made to emulate a serial interface by assigning it a timing signal.

The IP address for the serial interface is configured.

38 As network administrator, what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?

255.255.0.0

255.255.248.0

255.255.252.0

255.255.254.0

255.255.255.0







255.255.255.128

39

Refer to the exhibit. The diagram represents the process of sending email between clients. Select the list below that correctly identifies thprotocol used at each numbered stage of the diagram.

1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA

1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA

1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA

1.MDA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MUA 7.POP 8.MDA

1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA

40

Examine the graphic with current configurations. Host A in the Clerical office failed and was replaced. Although a ping to 127.0.0.1 was sreplacement computer cannot access the company network. With proxy ARP disabled on the Fa0/0 interface of the New York router, whacause of the problem?

network card failure

network cables unplugged

IP address incorrectly entered

subnet mask incorrectly entered

41 While configuring a router, a network technician wants to name the router. Which prompt should the technician see when entering









thehostname command?

Router>

Router#

Router(config)#

Router(config-line)#

42

Refer to the exhibit. A web browser is running on host PC1 with an IP address 10.10.2.2/24. A dynamic port number of 49152 is assignedThe browser sends a request for a web page to the web server with an IP address 192.168.1.254/24. Which statement is true?

The session is established using TCP, and the socket number for the web server is 192.168.1.254: 80.

The session is established using TCP, and the socket number for the web server is 192.168.1.254: 49152.

The session is established using UDP, and the socket number for the web server is 192.168.1.254: 80.

The session is established using UDP, and the socket number for the web server is 192.168.1.254: 49152.

43 A network administrator is asked to design a new addressing scheme for a corporate network. There are 60 users in the main office, 40 ubranch office, 28 users in manufacturing, 12 in the sales office, and 4 users in the research office. Which VLSM addressing scheme that192.168.88.0/24 network will fulfill the requirements while wasting the fewest addresses?

192.168.88.0/26 main192.168.88.32/26 branch192.168.88.64/26 manufacturing192.168.88.96/27 sales192.168.88.128/28 research192.168.88.0/26 main192.168.88.64/26 branch192.168.88.128/27 manufacturing192.168.88.160/28 sales

192.168.88.176/29 research192.168.88.0/27 main192.168.88.32/27 branch192.168.88.64/28 manufacturing192.168.88.80/29 sales192.168.88.88/30 research192.168.88.0/27 main192.168.88.64/28 branch192.168.88.80/28 manufacturing192.168.88.96/29 sales192.168.88.104/30 research

44









Refer to the exhibit. The host was disconnected from switch 2 and connected to switch 1. Which combination of IP address, subnet mask,gateway should be assigned to this host to allow it to function in the network?

IP address: 10.10.9.37 Subnet mask: 255.255.255.240 Default gateway: 10.10.9.35






45

Refer to the exhibit. The NAT functionality of the router is enabled to provide Internet access to the PC. However, the PC is still unable to acaddress should be changed to 209.165.201.1 to enable the PC to access the Internet?

192.168.1.191

192.168.1.101

192.168.1.1

192.168.1.254

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46 A user types the enable command. What task can be performed at the privileged EXEC mode?

Configure the device.

Configure individual interfaces.

Configure individual terminal lines.

Issue show and debug commands.

47 What are two characteristics of the data link layer? (Choose two.)

It segments and reorders the data.

It exchanges the frames between nodes.

It defines the method by which network devices place data onto the media.

It manages the transfer of data between the processes that run on each host.

It retrieves signals from the media and restores them to their bit representations.

48 If an administrator wished to return a router to the default state, what additional step must be taken after issuing the command erase star

Reload the device.

Issue the command copy running-config start-up config.

Perform a show running-config to verify that the file was removed.

Enter the interface commands to allow the device to connect to the network.

49

Refer to the exhibit. The serial interface of the router was configured with the use of the commands that are shown. The router cannot pinis directly connected to interface serial 0/0/0. What should the network technician do to solve this problem?

Configure the description at interface serial 0/0/0.

Configure an IP address on interface serial 0/0/0.

Remove the no shutdown command at interface serial 0/0/0

Reboot the router.

50 A network has grown too large for technicians to configure network addresses and hosts files for name resolution. Which two application lshould be added to the server to allow these needs to be satisfied dynamically? (Choose two.)

DNS

FTP

DHCP

HTTP

SMTP

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